Miley Cyrus has clearly moved on from her Aussie fiance, with MailOnline revealing the young twerker was spotted “making out” with rock star Benji Madden at a Halloween party on Thursday night.

The pair were reportedly seen getting hot and heavy on the dance floor at West Hollywood nightclub Bootsy Bellows.

“They seemed really into each other,” an eyewitness said.

Miley, dressed in a decadent Lil Kim outfit, was introduced to the former Good Charlotte singer through a friend at Adam Lambert’s Halloween Party Powered by CIROC.

“Soon they were flirting and talking very closely. Then they shared a kiss. They left Bootsy Bellows together around 1 am,” an eyewitness said. “They tried to be discreet by sharing a car with some other friends but it was clear they were leaving as a couple.”